Thirteen months ago, Mike Singletary interviewed for the Minnesota Vikings' coordinator job. He lost out to Alan Williams and remained on his friend Leslie Frazier's staff as co-linebackers coach.

The St. Louis Rams apparently were willing to give him another shot. Singletary interviewed this week for the Rams' defensive coordinator position, CBSSports.com reported.

Singeltary, 54, never has been a coordinator at any level. A Pro Football Hall of Fame linebacker, he coached that position in 2003 and '04 with Baltimore and from 2005 to '08 in San Francisco before becoming the 49ers' head coach (2008 to '10) and then joining the Vikings.

The Rams didn't have a defensive coordinator during the 2012 season because of Gregg Williams' suspension. They reportedly hired Rob Ryan last month, only to realize days later he wasn't the right fit for their 4-3 scheme.

In an interview with 1500 ESPN this week, Frazier said he expects his entire staff to return, provided no one leaves for a job elsewhere.

Singletary and special teams coordinator Mike Priefer interviewed last month for Chicago's head coaching job. The only member of the staff known to have left is Cameron Turner, Frazier's assistant who was replaced by Jeff Howard, a former defensive graduate assistant at Texas Tech.